I need to create a "media uploader metabox" and add it to my custom post type.
I've already create normal metaboxes, the function to add to the custom post type and the function to save them, I only need to use the wordpress' media uploader but I can't figured out how to do that.
After that I would insert something like "Add more image" that add more metaboxes into the page.

Nope, I need only something to start because I found only difficult tuts, but I'll check the first you gave me :)
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dborghezApr 1 '14 at 8:38

Well what you are asking is fairly complex (repeating upload fields) so it is fair to expect the tutorials to be challenging. You can save yourself a lot of hassle for <$25 with Advanced Custom Fields' extension.
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helgathevikingApr 1 '14 at 9:19

Yep but I'm developing a theme, I can't include plugin that cost :/
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dborghezApr 1 '14 at 9:54

1

Sometimes a plugin is just what you need. I'm all for learning, but you don't always have to reinvent the wheel. :) Good luck.
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helgathevikingApr 1 '14 at 10:29